[dejan]

We could all bake our own bread at home, but very few do. It boils down to convenience and time best spent.

By all means, I would recommend [5] if you have the technical knowledge to run it. This will give you more insight and appreciation for email as well [2] & [1] and humbly... [0].

Unfortunately, running an email service is a very underappreciated task; after Gmail - it is taken for granted. Cheers to Postmasters at MXRoute and Postale.io!